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Finding the Fourth Proportional to 472,512.80, 708,769.20 and 452,829.80

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Solution

The fourth proportional to 472,512.80, 708,769.20 and 452,829.80 is: 679,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,512.80 : 708,769.20 = 452,829.80 : x
  2. Step 2: Convert to fraction form
    472,512.80/708,769.20 = 452,829.80/x
  3. Step 3: Cross multiply
    472,512.80x = 708,769.20 × 452,829.80
  4. Step 4: Simplify right side
    472,512.80x = 320,951,815,082.16
  5. Step 5: Solve for x
    x = 320,951,815,082.16/472,512.80
  6. Step 6: Final answer
    x = 679,244.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.